Feeder for shaker conveyers



AUS' 12, 1930. J. H. -D. PETERSEN Er AL 1,772,681

FEEDER ron SHAKER coNvEYERs 2 Sheets-Sheet 1 Filed Julyv 12. '1926 M .L @if jira/wiwi AAug. l2, 1930. H. uPE'TERsEN ET AL FEEDER ron 'SHAKER CoNvEYERs 2 Sheets-Shut 2 Filed July 12 1926 Patented Malz; 1930 UNITEDA STATES PATENT oFF-lcs JOHN E51). ZPETEYBSEN AND JOHN W. WILSON, Ol' CHICAGO, ILLINOIS,'ASSIGNORS TO LINK-BELT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS FEEDER FOR SHAKER CONVEYEBS application ma my 12, 192s. seran no. 121,796.

Our invention relates to a feeding device for excavating or conveying machinery and particularly to a feeder for shaker or reciprocating conveyers.. One object of our invention is the rovision of feeding means for use with a fee ing conveyer, whereby a conveyer may automatically'feed itself or pick up the material to be conveyed. Another object is the provision of a combined excavating and conveying member whereby material may be fed to a reciprocating conveyer in response to the reciprocation of the conveyer. Another obj ect-is the provision of means for extending such a conveyer and feed member, in

A order to permit proloneltll feding wihout t ero jectswilapfrequent adjustment.

pear from time to time throughout the specication and claims.

We illustrate our invention more or less 2 diagrammatically in the accompanying tion `of Figure 1, illustrating the feeding member as applied to the conveying member;

Figure 3 is a plan view; Figure 4 is a detail of the advancing means for the feeding menitl..

Figure 5 is a section along the line 5-5 of Figure 4;

Figure 6 is a section along the line 6-6 of Fi ure 2; and A i ure 7 is a modified form of clampin and seding means. Like arts are indicate by like characters throng out the specification and drawings.

Whereas we do Anot wish to limit ourselves p to the particular employment of the feeding member herein shown, or to any particular conveyer, it is herein illustrated as employed with a reciprocating or shaking conveyer of the type wherein the conveyer is reciproca-ted in opposite directions at different speeds, for example with a slow forward movement and a rapld rearward movement. Referring for example to' Figures 1 and 2, A indicates the floor and A1 the roof of a mine tunnel or assage. Ax1 is a transverse passage containmg for example the tracks A adapted to guide vany suitable conveying ,member or support the upper track members Bs upon the trough B.

C diagrammatically illustrates any suitable reciprocating means for said trough, including the crank arm C1.

Referring to Figures 2 and 3, we illustrate the trough B as having secured to the forward end of the forward section the feeder member generally indicated as X. It will be understood that we may employ any suitable number of trough' sections B, additional sections being inserted as the work .pro esses.

The securing means between the eeding member and the end of the trough B are as follows: Secured to the trough B is a yoke member D having the arms D1, within which is pivoted the transverse member D2. Upwardly projecting from said member D2 is the vertical pin or pivot D to which the feeding member is pivoted. It will be understood that the feeding member as a whole ma rotate `freely about either a vertical or a oribelng in slida le relation with t e trough D",

there being no connection between the trough D and the conveyer B. Referring to Figure 6, which1 illustrates the cross section of the feeding member, the trough D5 is rovided with horizontal side anges D6 w ich engage and slide upon corresponding flanges D7 upon the lower trough D. The troughs are preferably but not necessarily out of con- .tact except along said flanges.

In order to ermit lateral movement of the feeding mem er, for example," by rotation about the vertical pivot Ds or, when such pivot arrangement is omitted, by lateral movement 'o the end ofthe conveyer as a Whole, W0 W017i de a slidable snnhorting mem- ,sition, by inertia,

'lower trough D.

of the flat ground en aging aptefl mounted at opposite sides of the trough D, and conv nected to it b the upwardly turned portions E. It will be understood that as the conveyer as a whole reciprocates the shoe E remains fixed, the bars E2 sliding across its upper surface and along the up r recurved portions E1. When it is desire to move the conveyer laterally, the shoe E acts as a runner or sled, su porting the feeding member, holding it above the ground and permitting its lateral movement.

' Assuming that the conveyer with the feeder at the end is in engagement with the material diagrammatically indicated in Figure 2 as G, the rapid forward movement o the conveyer will thrust the end of the feeding member into the material. As the conveyer is slowly withdrawn, the material4 u on its upper surface moves with it. At' t e succeeding rapid reverse movement of conveyer and feeder, the feeder is again forwardly thrust into the material G and the forward movement is so rapid that the material already on the conveyer, instead of traveling rearwardly with the conveyer, holds its ountil it is again rearwar ly conveyed at the next reverse slow conveying movement.

In order to permit the feeding member to be advanced as the material accumulated is disposed of, we provide means for moving the upper trough D forwardly inrelation to the We may employ any suitable means, but an efficient means of accomplishing the result is illustrated in the structures shown in Figures 4 and 5.

Referring to these figures, upon the lower side of the flanges DT, we position the angle irons H H formin channels along which are spaced a lplurality of pins H1 carr' ng sleeves H2. hese sleeves may extend om end to end of the trough or fora distance ual to the desired relative maximum movement of the two trou hs.

Mounted upon the anges Ds of the upper trough D5 is the angle member J with its portion J1 and the downwardly dependin terminal reinforcing we s or anges J 2 whlch converge at the bottom of the member J1 and are connected to the hub member J 2. Mounted for rotation in said hub J 2 is the sleeve J 4* through which passes the square shaft J5. At one end of said shaft is the pinion J having teeth J 2 adapted to engage the sleeves H2 which serve as ratchets.

At the opposite end of the square shaft J 2 is positioned the notched wheel K having the outwardly roj ectingr cylindrical portions K1 at each si e there@ Rotatin about said cylindrical portions are the for ed members Ks K, of the lever K2. The members Ka are connected by any suitable transverse Din K to which is pivoted the double dog K5. K ils a lug or lever upwardly projecting from the center of the dog Kl5 and K1 is a compression spring tending to hold in engagement whichever tooth or arrn of the dog is in engagement with the wheel K.

Mounted on the cylindrical member L10 inwardly projecting along the square shaft J 5 from the pinion J 2 is the lever awl L1 having a terminal member L2 adapte to engage the spacer sleeves H2. L3 is a tension spring, one end of which is secured to the pawl as at L4, and the other end as at L5 to the member J1, thus tending to draw the pawl clockwise into with the members H2. L6 indiengagement cates any suitable handle whereby the pawl may be withdrawn from position. L7 L7 are stops on the webs J2 ada ted to limit the travel in either direction o 'the lever K2. v It will be understood that the structure is duplicated in opposite sides in the troughs D* D5, the two levers K2 being connected by the cross member Km.

In order to promote the easy and rapid movement of material upon the feeding member, we provide the trough D5 with a laterally expanded terminal portion M, terminated in a mounted orarcuate forward edge M1. Such edge M 1 of the upper trough D may be provided with a plurality of teeth M2.

Referring to Figure 7 I illustrate a variant` means for advancing the trough D5, with -which is associated a positive locking member. T he trough D5 is shown as carrying any suitable rack member P adapted to receive the teeth P1 of the ratchet wheel P2. P:l is the actuating lever having the transverse pin P* adapted to engage the notches of the Wheel P2. It is provided with the slot P5 which receives the pivot pin P of the wheel P2 and permits the lever to be u wardly moved to permit its disenga ement rom the` wheel P2. P1 is any suitab e eccentric latch member controlled by the handle P12 and adapted to thrust the drive D5 downwardly against the lower trough D* to prevent relative movement thereof. v

It will be realized that whereas we have described and shown a practical and operative device, nevertheless many changes might be made in the size, shape, number. disposi- -tion and proportion of parts without departing from the spirit of our invention. We therefore wxshour drawings to be taken as in a broad sense lllustrative and diagrammatic rather than as limiting us to the specific description and showing herein made. In particular we do not wish to be limited to the details of the conveyer with which our feeding member is shown or to the specificmeans for advancing the movable member of the feeding conveyer.

The use and operation of our invention are as follows:

Reciprocating conveyers of the type herely, conveyers which may be reciprocated at different velocities in opposite directions in order to convey material fed to them. Such conveyers may be employed for manypurposes'and may for example be employed in mining. Such a conveyer when so employed may be advanced from a given locatlon by the insertion of additional conveyer sections as the shaft is lengthened, all such sections forming a single conveyer, reciprocated from a single power source. The material to be conveyed may be shot down from the end of the shaft or otherwise accumulated and is generally divided into lumps and particles of varying size. We mount upon the forward end of the conveyer a feeding member which is adapted to be thrust by the forward movement of the conveyer into the pile of mate- I rial to be conveyed. The slow rearward movement of the feeding member conveys away the material received upon it as a result of the rapid forward thrust. However, when large quantities of material are thus rapidly rearwardly conveyed from the working face of the shaft the face of the material available for excavation recedes. In order to permit the conveying and feeding to continue without the necessity of forwardly adjusting the conveyer we have provided the means above described for advancin the upper of the two troughs, inrelation to t e lower. The notched wheel K is actuated in response to movement of the lever K2. Preferably we employ a pair of levers at opposite sides of the trough connected by the transverse member K1". The lever-K2 engages the wheel through the dog Ks which may be reversed as to direction. for example b the foot of the operator. When the troug D is being advanced, the wheel K in response to Vthe movement of said lever K2 draws the troughl forwardly along the spacers H2 between the channel formmg angle irons H. Rearward movement .of the trough, in response to reciprocation of the conveyer, is prevented by the` pawl L1 which is normally upwardly drawn by the tension spring L3 so that its end L engagesthe spacers H2. As the trough is forwardly moved the pawl overrides the spacers but prevents rearward movement of the trough. If desired we may also provide positive clamping means as shown in detall in Figure 7 In the general operation of the device as the depth of the shaft increases the feeder is advanced. When the upper trough `D5 has been advanced as far as it can be, it is returned toits original position and an additional section ofthe conveyer is inserted, the process being continued indefinitely.

We claim:

1. The combination with a reci rocator for said first member adapted to permit lateral movement of the feeding means, and a slidable connection between said member and said mounted engaging shoe to permit the reciprocation of said member in unison with the reciprocatory conveyer.

2. The combination with a'reciprocatory conveyer of a feeder therefor, comprising a material pick-up member in communication with the end of the conveyer and adapted to reciprocate therewith, and pivotally mounted for rotation, in relation to thiJ conveyer, about avertical axis, and a laterally extended, laterally slidable ground engaging supporting shoe for said pick-up member, in slidable relation with said pick-up member.

3. The combination with a reciprocatory conveyer of a feeder therefor, comprising a material pick-u member in communication with the end of tlie conveyer and adapted to reciprocate therewith, and pivotally mounted for rotation, in relation to the conveyer,`

5. In a self-feeding conveyer, in combination, a generally horizontal conve er trough and means for lmparting to it a 'Herential conveying reciprocation, and a digging and feeding member secured to said trough and adapted to move in unison therewith and to deliver material directly thereto, and a laterally disposed runner, positioned beneath the digging member and `a longitudinally slidable connection therebetween. y

Signed at Chicago, in the county of Cook and State of Illinois, this 8th day of July,

' J. W. WILSON.

JOHN H. D. PETERSEN. 

